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Scand J Immunol. 1994 Jan;39(1):111-5.

Characterization of an early activation-dependent antigen on lymphocytes defined by the monoclonal antibody BL-Ac(F2).

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1
University of Leipzig, Department of Biosciences, Germany.

Abstract

A novel activation-dependent lymphocyte cell-surface antigen which is recognized by a MoAb, BL-Ac(F2), is described. Although not found on resting lymphocytes the antigen is induced rapidly within 2-4 h following stimulation of the cells using mitogens or antibodies against the T-cell CD3 antigen and sIgM on B cells, respectively. Immunoprecipitation and Western Blotting indicated that the MoAb recognizes a molecule in a range of 78-85 kDa. Beyond its activation-dependent expression on lymphocytes the antigen was detected also on myelo-monocytic cells. Expression kinetics and cellular distribution of this molecule suggest that it is distinct from previously described activation-dependent cell-surface antigens such as CD69, CD25 and 4F2.

[Indexed for MEDLINE]

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